Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2004- Mitsubishi Diamante . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.

NOTE *1 THE DRIVERS DOOR TRIGGER IS YELLOW(-),PIN 8, 19 PIN PLUG BELOW ETACS ECU. THE DRIVERS REAR DOOR IS LIGHT GREEN(-), PIN 8 IN 22 PIN BLACK PLUG ABOVE FUSES.THE PASSENGERSIDE DOOR TRIGGERS ARE BOTH IN A 14 PIN PLUG AT THE ASSIST ECU IN THE PASSENGER KICK PANEL.THE FRONT PASSENGER DOOR IS WHITE/GREEN(-) IN PIN 4 AND THE REAR PASSENGER DOOR IS YELLOW/BLACK(-) IN PIN 12. WHEN CONNECTING TO AN ALARM SYSTEM USE ALL 4 DOOR TRIGGER WIRES AND DIODE ISOLATE, TO CONNECT, SEE DIAGRAM
NOTE *2 THE IGNITION CHECK CONNECTOR IS A 3 PIN PLUG ABOVE THE BRAKE MASTER CYLINDER.THE WHITE WIRE IS ALSO LOCATED AT THE DISTRIBUTOR.
NOTE *3 METER THIS WIRE BY TURNING KEY IN THE TRUNK KEY CYLINDER.
NOTE *4 THE ETACS (Electronic Timing/Alarm Control System), ECU (Electronic Control Unit) MODULE IS ATTACHED TO THE BACK OF THE FUSEBOX.